68712900 has 72 divisors (see below), whose sum is σ = 199883040. Its totient is φ = 18224640.

The previous prime is 68712899. The next prime is 68712907. The reversal of 68712900 is 921786.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68712907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67596 + ... + 68604.

Almost surely, 2^68712900 is an apocalyptic number.

68712900 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68712900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99941520).

68712900 is an abundant number, since it is smaller than the sum of its proper divisors (131170140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68712900 is a wasteful number, since it uses less digits than its factorization.

68712900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253 (or 1246 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 68712900 is about 8289.3244598097. The cubic root of 68712900 is about 409.5869327827.

The spelling of 68712900 in words is "sixty-eight million, seven hundred twelve thousand, nine hundred".